摘要
反应效率低是半导体光催化剂在有机废水处理应用受限的主要因素之一,为此需对半导体光催化剂改性以提高其性能。首先介绍了光催化处理有机废水原理,对半导体光催化剂改性的必要性进行论述,综述了半导体光催化改性技术的主要方法,包括离子掺杂、异相结、形貌调控、异质结、助催化剂沉积等。总结了离子掺杂方法并阐述其对有机废水处理效果,介绍了异相结的构建、形貌调控策略,讨论了传统II型异质结、Z型异质结和S型异质结机理以及理论应用,对贵金属、非贵金属助催化剂沉积优缺点进行分析,最后指出光催化技术在实际应用中面临的问题,对该项技术的后续发展提出展望。
Lower reaction efficiency is one of the main factors which limits the application of semiconductor photocatalysts in organic wastewater treatment,so it is necessary to optimize the semiconductor photocatalysts for improving their performance.This paper first introduces the principle of photocatalytics treatment in organic wastewater,discusses the necessity of modified semiconductor photocatalysts,and summarizes modification methods of semiconductor photocatalysts,which include ion doping,hetero-phase junction,morphology control,heterojunction,cocatalyst deposition,etc.Then the paper summarizes the ion doping method and describes its effect on organic wastewater treatment,introduces the construction of hetero-phase junction and morphology control strategy,discusses the mechanism and theoretical application of traditional type II heterojunction,Z-type heterojunction and S-type heterojunction,analyzes the advantages and disadvantages of precious metal and non-precious metal catalyst deposition.Finally,the problems in the practical application of photocatalysis technology are pointed out,and the follow-up development of this technology is prospected.
作者
张立成
王辛
刘澈
候瑞颖
ZHANG Licheng;WANG Xin;LIU Che;HOU Ruiying(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China;Shiyuan Technology Engineering Co.,Ltd.,Beijing 100142,China)
出处
《应用化工》
北大核心
2025年第8期2163-2169,共7页
Applied Chemical Industry
基金
国家重点研发计划“政府间国际创新合作”重点专项(2023YFE0114100)。
关键词
半导体光催化剂
改性技术
有机废水
形貌调控
异质结
semiconductor photocatalysts
modification technology
organic wastewater
morphology control
heterojunction
